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SQL - many-to-many table primary key
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Java 8 Stream and operation on arrays
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How can I deploy/push only a subdirectory of my git repo to Heroku?
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How to find out which fonts are referenced and which are embedded in a PDF document
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Insert line break inside placeholder attribute of a textarea?
...
Don't think you're allowed to do that: http://www.w3.org/TR/html5/forms.html#the-placeholder-attribute
The relevant content (emphasis mine):
The placeholder attribute represents a short hint (a word or short
phrase) intended to aid the user with data entry when th...
Explaining difference between automaticallyAdjustsScrollViewInsets, extendedLayoutIncludesOpaqueBars
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How to get the root dir of the Symfony2 application?
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How to implement a many-to-many relationship in PostgreSQL?
...ables using serial primary key columns
Auto increment table column
https://www.2ndquadrant.com/en/blog/postgresql-10-identity-columns/
I highly recommend that, because the name of a product is hardly unique (not a good "natural key"). Also, enforcing uniqueness and referencing the column in foreign...
How to create a template function within a class? (C++)
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Creating a new directory in C
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